Mothproofing curled hair



UNITED STATES PATENT OFFICE.

JOHN RUCH AND JOHN RUOH, JR, OF PHILADELPHIA, PENNSYLVANIA.

MOTHPROOFING CURLED HAIR.

SPECIFICATION forming part of Letters Patent No. 369,739, datedSeptember 13, 1867.

Application filed May 21, 1886. Serial No. 202,906. (No specimens.)

To all whom it may concern: I

Be it known that we, JOHN RUOH and JOHN 'RUCH, Jr., both citizens of theUnited States, I residing in Philadelphia, Pennsylvania, have fibershave a destructive influence upon the worms or larvae of moths and uponother insects, and that when curled hair and like upholstery materialsare treated with such distillates in the manner hereinafter set forthsaid materials are rendered proof against the ravages of these insects.

The distillates which we prefer to use are creosote and pyroligneousacid but other wood distillates having similar properties may beemployed, if desired.

In carrying out our invention We take the creosote or pyroligneous acid,or a combina tion of the tWo, and subject the curled hair or othermaterial which is to be protected to the direct action of thedestructive and preventive agent. This may be done by steeping, dipping,or boiling the material in the distillwn 7 i ate, or in a solution ofthe same; or the liquid may be sprayed over the material or applied bymeans of a brush or swab, or in such other ways as circumstances maysuggest as the most appropriate, the treated material being then dried.

Distillates of the character specified have the quality of so thoroughlyimpregnating the fibers that when the latter are dried the protectingagent will be combined therewith in the form of a fixed deposit. I

Curled hair and like upholstery materials treated in this way are thuspermanently uufitted as food for the worms or larvae of moths and otherinsects, and hence are rendered proof against the ravages of suchinsects.

We therefore claim as our invention The mode herein described ofmothproofing curled hair and like upholstery material, said modeconsisting in impregnating the material with creosote or its specifiedequivalent and then drying the material, so as to leave the protectingagent per-inanentl y combined therewith, all substantially as specified.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

JOHN RUOH. JOHN RUGI-I, JR. Witnesses:

WILLIAM D. OQNNER, HARRY SMITH.

